| Title: | GO-enabled bacterial cellulose membranes by multistep, in situ loading : effect of bacterial strain and loading pattern on nanocomposite properties |
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| Authors: | ID Gabryś, Tobiasz (Author)
ID Fryczkowska, Beata (Author)
ID Jančič, Urška (Author)
ID Trček, Janja (Author)
ID Gorgieva, Selestina (Author) |
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| Files: |  Gabrys-2023-GO-Enabled_Bacterial_Cellulose_Mem.pdf (6,62 MB)
MD5: 3F65F3A478B9861B553A5DBCDF49477B
 https://doi.org/10.3390/ma16031296
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
FNM - Faculty of Natural Sciences and Mathematics
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| Abstract: | This paper presents the results of research on the preparation and properties of GO/BC nanocomposite from bacterial cellulose (BC) modified with graphene oxide (GO) using the in situ method. Two bacterial strains were used for the biosynthesis of the BC: Komagataeibacter intermedius LMG 18909 and Komagataeibacter sucrofermentans LMG 18788. A simple biosynthesis method was developed, where GO water dispersion was added to reinforced acetic acid-ethanol (RAE) medium at concentrations of 10 ppm, 25 ppm, and 50 ppm at 24 h and 48 h intervals. As a result, a GO/BC nanocomposite membrane was obtained, characterized by tensile strength greater by 150% as compared with the pure BC (̴ 50 MPa) and lower volume resistivity of ~4 ∙ 109 Ω × cm. Moreover, GO addition increases membrane thickness up to ~10% and affects higher mass production, especially with low GO concentration. All of this may indicate the possibility of using GO/BC membranes in fuel cell applications. |
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| Keywords: | bacterial cellulose, graphene oxide, nanocomposite, structural analysis |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 06.12.2022 |
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| Article acceptance date: | 31.01.2023 |
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| Publication date: | 02.02.2023 |
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| Publisher: | MDPI |
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| Year of publishing: | 2023 |
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| Number of pages: | Str. 1-18 |
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| Numbering: | Letn. 16, Št. 3, št. članka 1296 |
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| PID: | 20.500.12556/DKUM-87370  |
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| UDC: | 577:677.46 |
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| ISSN on article: | 1996-1944 |
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| COBISS.SI-ID: | 140669187 |
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| DOI: | 10.3390/ma16031296 |
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| Publication date in DKUM: | 13.03.2024 |
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| Views: | 560 |
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| Downloads: | 98 |
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| Metadata: |    |
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| Categories: | Misc.
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